IRAP

[Zoom on the #CosmicWeb] Have you dived into the deep fields of #Euclid revealed this Wednesday by the @ec_euclid ? Have you navigated between the thousands of #galaxies of different shapes, sizes, colors and masses? So many objects, near and far, fill our #Universe! https://sky.esa.int/esasky/?hide_welcome=true&hide_banner_info=true&hips=DES-DR2+ColorIRG&sci=false&layout=esasky&euclid_image=EDFS

What if their spatial distribution could tell us something about two mysterious components : #DarkMatter and #DarkEnergy? This is the gamble taken by the scientists involved in the Euclid mission. To do so, they've designed some unrivalled #instruments: a camera with great depth of field and high resolution records the variety of shapes and spatial distribution of galaxies, while a #spectrometer coupled with a #photometer can determine the distances and masses of galaxies ...

Alain Blanchard, professor at the University of Toulouse and researcher at IRAP, comments on the consortium's first-ever publication of scientific data: https://www.irap.omp.eu/en/2025/03/euclid-telescope-reports-first-results/

ESASky 7.3.1

ESASky is an application that allows you to visualise and download public astronomical data from space-based missions.

Mar 21 at 1:20pmWeb
Show threadEl_mecanicoMar 21

@IRAP @ec_euclid Millions of galaxies... and a selfie.

(Sort of).

Show threadEuclid ConsortiumMar 21

@Er_mecanico @IRAP

This is outside the area covered by Euclid and is probably a "ghost" image from multiple reflections or some internal reflection of the telescope - in this case (probably) from the UK Schmidt telescope that was used to observe the southern part of the Digitizes Sky Survey that provided the background image there.

https://en.wikipedia.org/wiki/Digitized_Sky_Survey

So it's some sort of a selfie, but not by Euclid.

Digitized Sky Survey - Wikipedia